[Webkit-unassigned] [Bug 224518] New: Editing null pointer dereference while resolving command

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=224518

            Bug ID: 224518
           Summary: Editing null pointer dereference while resolving
                    command
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: iang at apple.com

removeRedundantBlocks() may run into a null pointer while iterating over the tree, if the tree is unexpectedly modified during the execution of a command. Adding null check to quit this step if a parent node cannot be resolved.

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